Advanced lens design for bit-wise volumetric optical data storage

Yan Zhang; Tom D. Milster; Jai Soon Kim; Sang Ki Park

doi:10.1143/JJAP.43.4929

Advanced lens design for bit-wise volumetric optical data storage

Yan Zhang, Tom D. Milster, Jai Soon Kim, Sang Ki Park

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The storage capacity of a fluorescent bit-wise volumetric optical data storage system is limited by the inter-layer crosstalk and the maximum compensation range of spherical aberration induced by different layers inside the medium. Lens designs of far-field and near-field optical systems suitable for volumetric storage are presented. The maximum compensation range of each design is calculated. The storage densities of far-field and near-field confocal systems in terms of bits-in^-2re derived based on the maximum compensation ranges and appropriate data layer spacings that induce a -30 dB maximum level of inter-layer crosstalk. It is shown that an optimized near-field system is able to achieve 1.65 Tb-in^-2 data density.

Original language	English (US)
Pages (from-to)	4929-4936
Number of pages	8
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	43
Issue number	7 B
DOIs	https://doi.org/10.1143/JJAP.43.4929
State	Published - Jul 2004

Keywords

Crosstalk
Near-field optical storage
Signal-to-noise ratio
Volumetric data storage

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.43.4929

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title = "Advanced lens design for bit-wise volumetric optical data storage",

abstract = "The storage capacity of a fluorescent bit-wise volumetric optical data storage system is limited by the inter-layer crosstalk and the maximum compensation range of spherical aberration induced by different layers inside the medium. Lens designs of far-field and near-field optical systems suitable for volumetric storage are presented. The maximum compensation range of each design is calculated. The storage densities of far-field and near-field confocal systems in terms of bits-in-2re derived based on the maximum compensation ranges and appropriate data layer spacings that induce a -30 dB maximum level of inter-layer crosstalk. It is shown that an optimized near-field system is able to achieve 1.65 Tb-in-2 data density.",

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AU - Kim, Jai Soon

AU - Park, Sang Ki

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AB - The storage capacity of a fluorescent bit-wise volumetric optical data storage system is limited by the inter-layer crosstalk and the maximum compensation range of spherical aberration induced by different layers inside the medium. Lens designs of far-field and near-field optical systems suitable for volumetric storage are presented. The maximum compensation range of each design is calculated. The storage densities of far-field and near-field confocal systems in terms of bits-in-2re derived based on the maximum compensation ranges and appropriate data layer spacings that induce a -30 dB maximum level of inter-layer crosstalk. It is shown that an optimized near-field system is able to achieve 1.65 Tb-in-2 data density.

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KW - Signal-to-noise ratio

KW - Volumetric data storage

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Advanced lens design for bit-wise volumetric optical data storage

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Keywords

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